90690343 has 2 divisors, whose sum is σ = 90690344. Its totient is φ = 90690342.

The previous prime is 90690331. The next prime is 90690349. The reversal of 90690343 is 34309609.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90690343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90690299 and 90690308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90690349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45345171 + 45345172.

It is an arithmetic number, because the mean of its divisors is an integer number (45345172).

Almost surely, 2^90690343 is an apocalyptic number.

90690343 is a deficient number, since it is larger than the sum of its proper divisors (1).

90690343 is an equidigital number, since it uses as much as digits as its factorization.

90690343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 90690343 is about 9523.1477464124. The cubic root of 90690343 is about 449.2833746056.

The spelling of 90690343 in words is "ninety million, six hundred ninety thousand, three hundred forty-three".